Star · M1V
SDSS J121210.98+605947.9
SDSS J121210.98+605947.9 is a main-sequence star of spectral type M1V in the constellation Ursa Major, 231.4 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 231.4 light-years (70.9 pc) |
| Apparent magnitude | magnitude 21.25 |
| Absolute magnitude | magnitude 17.00 |
| Spectral type | M1V |
| Surface temperature | 3,390 K |
| Luminosity | 9.49 × 10⁻⁵ L☉ |
| Radius | 0.0282 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 12m 10.9s |
| Declination (J2000) | +60° 59′ 48″ |
| Space velocity (relative to the Sun) | 35.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.25. Visible from the whole Northern Hemisphere and south to latitude 29° S. North of latitude 29° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1795. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.1 million years.
The Sun seen from there
From a planet around SDSS J121210.98+605947.9, the Sun would look like a star of magnitude 9.08, in the direction where our sky has the constellation Tucana. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 58572 8.91 light-years
- HIP 59205 8.97 light-years
- HIP 59866 14.5 light-years
- HIP 61886 16.3 light-years
- HIP 57020 17.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.